On average, a full tank yields roughly 300 to 600 miles for most passenger cars, depending on tank size and fuel economy. The basic formula is simple: miles per full tank = tank capacity in gallons × miles per gallon (MPG).
Beyond the math, real-world range depends on how you drive, where you drive, and how much cargo you carry. The following sections explain how to estimate your own range, with practical examples and caveats.
How to estimate your miles per full tank
Before you begin, know your tank capacity and your car's MPG. Use the steps below to compute your range.
- Find your tank capacity in gallons from the owner's manual, the fuel door sticker, or official specs. Most passenger cars carry 12–16 gallons; large SUVs and trucks often have 20–35 gallons.
- Look up your vehicle's MPG. Use EPA combined MPG for a baseline, or track your real-world MPG from recent fill-ups.
- Compute an estimated range: Range ≈ Tank capacity × MPG.
- Adjust for real-world factors such as city vs highway driving, weather, terrain, cargo, and use of climate control.
- Refine your estimate over time by noting your actual miles driven per tank and the amount of fuel used.
Applying this method gives a practical range you can use for planning short trips and longer journeys alike.
Typical ranges by vehicle class
Here's a broad sense of what drivers can expect across common vehicle types, using typical tank sizes and average fuel economy. Actual results vary by model and condition.
- Compact cars: 12–14 gallon tanks; roughly 30–40 MPG; about 360–560 miles per tank.
- Midsize cars: 15–16 gallon tanks; roughly 25–35 MPG; about 375–560 miles per tank.
- Small SUVs/crossovers: 15–18 gallon tanks; roughly 20–30 MPG; about 300–540 miles per tank.
- Full-size SUVs and pickup trucks: 20–35 gallon tanks; roughly 15–25 MPG; about 300–875 miles per tank.
Again, individual models may stretch beyond or under this range, depending on engine efficiency and driving conditions.
Maximizing miles per tank
Drivers seeking to stretch range can adopt fuel-saving habits, such as smooth acceleration, steady speeds on highways, reduced idling, proper tire inflation, and timely maintenance. Planning routes to minimize stop-and-go traffic also helps.
Summary
In short, miles per full tank vary widely, but you can estimate yours by multiplying your tank’s capacity by your vehicle’s MPG. Use the steps and ranges above to plan trips, monitor fuel use, and adjust for real-world conditions. With a little tracking, you’ll have a practical sense of how far you can go on a tank, and when it’s time to refuel.